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Grade C-2 Titanium vs. S30415 Stainless Steel

Grade C-2 titanium belongs to the titanium alloys classification, while S30415 stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is grade C-2 titanium and the bottom bar is S30415 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
190
Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 17
45
Fatigue Strength, MPa 200
300
Poisson's Ratio 0.32
0.28
Rockwell B Hardness 84
84
Shear Modulus, GPa 40
77
Tensile Strength: Ultimate (UTS), MPa 390
670
Tensile Strength: Yield (Proof), MPa 310
330

Thermal Properties

Latent Heat of Fusion, J/g 420
300
Maximum Temperature: Mechanical, °C 320
940
Melting Completion (Liquidus), °C 1660
1410
Melting Onset (Solidus), °C 1610
1370
Specific Heat Capacity, J/kg-K 540
480
Thermal Conductivity, W/m-K 21
21
Thermal Expansion, µm/m-K 8.7
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 37
15
Density, g/cm3 4.5
7.7
Embodied Carbon, kg CO2/kg material 31
3.1
Embodied Energy, MJ/kg 510
43
Embodied Water, L/kg 110
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 61
250
Resilience: Unit (Modulus of Resilience), kJ/m3 460
280
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 24
24
Strength to Weight: Bending, points 26
22
Thermal Diffusivity, mm2/s 8.8
5.6
Thermal Shock Resistance, points 30
15

Alloy Composition

Carbon (C), % 0 to 0.1
0.040 to 0.060
Cerium (Ce), % 0
0.030 to 0.080
Chromium (Cr), % 0
18 to 19
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
67.8 to 71.8
Manganese (Mn), % 0
0 to 0.8
Nickel (Ni), % 0 to 0.050
9.0 to 10
Nitrogen (N), % 0
0.12 to 0.18
Oxygen (O), % 0 to 0.4
0
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
1.0 to 2.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 98.8 to 100
0
Residuals, % 0 to 0.4
0